Jeremiah 25:3
From the thirteenth year of Josiah the son of Amon king of Judah, even unto this day, that is the three and twentieth year, the word of the LORD hath come unto me, and I have spoken unto you, rising early and speaking; but ye have not hearkened.
For twenty-three years, from the thirteenth year of Josiah to that present twenty-third year, God repeatedly sent Jeremiah to speak to Judah out of desire to save them, but the people despised his messages and refused to listen. His warnings called them to turn from evil and idolatry and to amend their conduct. Because they continued to reject him, captivity was foretold, with the Chaldeans to be used to punish them.
That judgment is presented as a cup of divine wrath to be drunk first by Jerusalem and Judah, then by Egypt and many other nations, until God's purpose is fulfilled. It is also pictured as an earthen vessel smashed beyond repair, because the people hardened themselves against God's words. The verse illustrates God's way of delaying judgment while warning people through His servants, yet persistent rejection of reproof does not prevent judgment from finally coming. The same lesson applies to those who profess God's name: when warned they are to repent, and if they keep rejecting counsel, judgment will come upon them.
Daniel later studied this prophecy and understood from it that Jerusalem's appointed seventy-year desolation was nearing its end. That understanding led him to connect the end of the seventy years with the restoration of the sanctuary and to pray for the desolate sanctuary.